Preheat the oven to 325°F (160°C) conventional. Wrap your cake pan in aluminum foil so that no water can enter.
In a small saucepan melt the butter and continue to cook, stirring occasionally, until the melted butter has browned and smells nutty like hazelnuts.
Combine all ingredients for the crust and mix well. Press into the bottom of the springform pan.
Bake in a preheated oven for 5 minutes. Cool completely.
Prepare the filling:
In a small bowl, whisk together the sour cream and heavy cream.
In the bowl of a stand mixer fitted with the paddle attachment (or with an electric hand mixer), beat the cream cheese until silky, creamy and smooth. Beat in vanilla extract.
Add the sugar and beat until no granules are visible. It will begin to look shiny.
Add the eggs and egg yolk one at a time and beat one minute after each addition. Add the sour cream mixture and beat to combine.
Reduce mixer to low speed and slowly add the lemon juice. Increase mixer speed to incorporate well.
Pour into the cooled crust. Place the pan in a large roasting dish and place in the preheated oven. Pour hot water into the pan approximately halfway up the sides of the pan.
Bake for 1 hour and 40 minutes or until set but still wobbly. The top will puff a little and the whole cheesecake will move in one motion rather than like ripples of liquid.
Allow to cool completely. Wrap and refrigerate at least 4 hours or overnight.
Prepare your meringue frosting:
Combine sugar and water in a sauce pot and boil over high heat. Scrape down the sides with a wet pastry brush, and clip on your candy thermometer.
While the syrup boils, beat egg whites and cream of tartar in a stand mixer using the whisk attachment until stiff peaks.
Try to time the whites arriving at stiff peaks to the sugar syrup reaching soft ball stage (238-240°F).
When the sugar syrup reaches soft ball stage, slowly pour the syrup into the whipping whites with the mixer on high speed.
Continue to beat until the meringue is stiff, shiny and cooled, about 7 minutes.
Assemble:
Top your cooled cheesecake with frosting. If you like, torch using a kitchen torch or under the broiler.
Notes
Yield: 1, 9 inch cheesecakeFlavor Tips - Use fresh lemon juice!Variations - You could leave the topping off and still have a fantastic cheesecake or top it with a lemon curd whipped cream or a vanilla whipped cream instead. It is also delicious with my marshmallow fluff frosting recipe mounded on top.Storage - The cheesecake can be stored, well wrapped, for 7 days in the refrigerator or up to 3 months in the freezer.